Chapter 6, Problem 6.14E

As a follow-up to the previous exercise, liquids can be made to freeze if enough vapor is forcibly removed from them and removing heat, say by using a vacuum. Assuming the vapor pressure of ${\text{H}}_{\text{2}}\text{O}$ remains constant as it cools (a very bad assumption, but see exercise $6.71$), estimate the mass of ice that will form as ${\text{H}}_{\text{2}}\text{O}$ vapors are pulled off of $500.0\text{g}$ of ${\text{H}}_{\text{2}}\text{O}$ starting at $25.0°\text{C}$. In addition to the data from exercise $6.13\text{a}$, use ${\Delta }_{\text{fus}}H\left({\text{H}}_{\text{2}}\text{O}\right)=6.009\text{kJ}/\text{mol}$.